<template>
  <Dialog :title="dialogTitle" v-model="dialogVisible">
    <el-form
      ref="formRef"
      :model="formData"
      :rules="formRules"
      label-width="100px"
      v-loading="formLoading"
    >
      <el-form-item label="年级" prop="grade">
        <el-select v-model="formData.grade" placeholder="请选择年级">
          <el-option
            v-for="dict in getStrDictOptions(DICT_TYPE.EXAM_GRADE)"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="学科" prop="subject">
        <el-select v-model="formData.subject" placeholder="请选择学科">
          <el-option
            v-for="dict in getStrDictOptions(DICT_TYPE.EXAM_SUBJECT)"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="来源" prop="source">
        <el-select v-model="formData.source" placeholder="请选择来源">
          <el-option label="请选择字典生成" value="" />
        </el-select>
      </el-form-item>
      <el-form-item label="题型" prop="questionType">
        <el-select v-model="formData.questionType" placeholder="请选择题型">
          <el-option label="请选择字典生成" value="" />
        </el-select>
      </el-form-item>
      <el-form-item label="题目" prop="questionContent">
        <Editor v-model="formData.questionContent" height="150px" />
      </el-form-item>
      <el-form-item label="答案" prop="standardAnswer">
        <el-input v-model="formData.standardAnswer" placeholder="请输入答案" />
      </el-form-item>
      <el-form-item label="答案解析" prop="answerAnalysis">
        <el-input v-model="formData.answerAnalysis" placeholder="请输入答案解析" />
      </el-form-item>
      <el-form-item label="评分标准" prop="scoringCriteria">
        <el-input v-model="formData.scoringCriteria" placeholder="请输入评分标准" />
      </el-form-item>
      <el-form-item label="知识点" prop="knowledgePoints">
        <el-input v-model="formData.knowledgePoints" placeholder="请输入知识点" />
      </el-form-item>
      <el-form-item label="难度等级(1-5)" prop="difficultyLevel">
        <el-input v-model="formData.difficultyLevel" placeholder="请输入难度等级(1-5)" />
      </el-form-item>
    </el-form>
    <template #footer>
      <el-button @click="submitForm" type="primary" :disabled="formLoading">确 定</el-button>
      <el-button @click="dialogVisible = false">取 消</el-button>
    </template>
  </Dialog>
</template>
<script setup lang="ts">
import { getStrDictOptions, DICT_TYPE } from '@/utils/dict'
import { QuestionsApi, Questions } from '@/api/exam/questions'

/** 考试题库 表单 */
defineOptions({ name: 'QuestionsForm' })

const { t } = useI18n() // 国际化
const message = useMessage() // 消息弹窗

const dialogVisible = ref(false) // 弹窗的是否展示
const dialogTitle = ref('') // 弹窗的标题
const formLoading = ref(false) // 表单的加载中：1）修改时的数据加载；2）提交的按钮禁用
const formType = ref('') // 表单的类型：create - 新增；update - 修改
const formData = ref({
  id: undefined,
  grade: undefined,
  subject: undefined,
  source: undefined,
  questionType: undefined,
  questionContent: undefined,
  standardAnswer: undefined,
  answerAnalysis: undefined,
  scoringCriteria: undefined,
  knowledgePoints: undefined,
  difficultyLevel: undefined,
})
const formRules = reactive({
  source: [{ required: true, message: '来源不能为空', trigger: 'change' }],
  questionType: [{ required: true, message: '题型不能为空', trigger: 'change' }],
})
const formRef = ref() // 表单 Ref

/** 打开弹窗 */
const open = async (type: string, id?: number) => {
  dialogVisible.value = true
  dialogTitle.value = t('action.' + type)
  formType.value = type
  resetForm()
  // 修改时，设置数据
  if (id) {
    formLoading.value = true
    try {
      formData.value = await QuestionsApi.getQuestions(id)
    } finally {
      formLoading.value = false
    }
  }
}
defineExpose({ open }) // 提供 open 方法，用于打开弹窗

/** 提交表单 */
const emit = defineEmits(['success']) // 定义 success 事件，用于操作成功后的回调
const submitForm = async () => {
  // 校验表单
  await formRef.value.validate()
  // 提交请求
  formLoading.value = true
  try {
    const data = formData.value as unknown as Questions
    if (formType.value === 'create') {
      await QuestionsApi.createQuestions(data)
      message.success(t('common.createSuccess'))
    } else {
      await QuestionsApi.updateQuestions(data)
      message.success(t('common.updateSuccess'))
    }
    dialogVisible.value = false
    // 发送操作成功的事件
    emit('success')
  } finally {
    formLoading.value = false
  }
}

/** 重置表单 */
const resetForm = () => {
  formData.value = {
    id: undefined,
    grade: undefined,
    subject: undefined,
    source: undefined,
    questionType: undefined,
    questionContent: undefined,
    standardAnswer: undefined,
    answerAnalysis: undefined,
    scoringCriteria: undefined,
    knowledgePoints: undefined,
    difficultyLevel: undefined,
  }
  formRef.value?.resetFields()
}
</script>